I wrote some expository words for my short film.

我为自己的短片写上了一些阐述性的文字。

Expository writing is a kind of writing style which objectively explains things.

说明文是一种对事物做客观说明的文体。

The editor added a lot of expository content to the film when editing.

剪辑师在剪辑过程中为影片添加了很多解释性的内容。

How to write an expository essay?

怎样写一篇说明文？

This expository dictionary is very useful.

这部注解的辞典很有用。

An expository treatise or series of annotations; an exegesis.

注释，训诂说明性的论述或一系列注解；注解收藏。

Write an expository essay explaining how to republishing fast.

写一篇有关如何快速阅读的说明文。

Our Destiny in Space "is an expository writing about popular science."

“我们在太空中的使命”为一篇有关科普知识的说明文。